Brad says his son Huck is crushing on Carrie: “He is obsessed with her and he’s only four!” Too cute.

A lot of men have a crush on country songstress Carrie Underwood, but no one quite as cute as Brad Paisley‘s little guy, Huck! “Huck has the biggest crush in the world on Carrie,” Brad, 38, tells People of his little guy with wife Kimberly Williams-Paisley. The 4-year-old is “obsessed” with the blonde bombshell and even wrote her a Valentine’s Day card. Aww!

“Carrie came over to the farm [last week] and she hadn’t met him yet,” Brad explains. “He went out and got her roses – we took him to Whole Foods and he picked them out himself – and he wrote her a Valentine and dictated it to his mom.” How romantic! “He said, ‘I hope you have an incredible day and night. Love Huck.’ That’s what he wanted to say to her.”

And after Huck showed Carrie is softer side, he had to redeem himself and display his tough guy attitude. “We were all hanging out in the studio and out of the blue, he said, ‘Carrie, watch!’” Brad explains, “And he pushed the pillows off of the couch with both arms and held them above his head and he said, ‘Look how strong I am!’ It was like, ‘Wow, the instinct is there already!’”